Duke Mariano of Sardinia

Duke Mariano of Sardinia (1329-) was the son of Count Ugone of Arborea and the lord of Sardinia under the Kingdom of Aragon.

Biography
Mariano as born in 1329, the son of Count Ugone of Arborea, and he came from the House of Cervera. Mariano became the Duke of Arborea under Aragon, and in 1344 he sought to have Pope Alexander V legitimize his claim to the throne of Aragon. However, Alexander refused to betray his ally of King Pere IV of Aragon, and he refused to give Mariano his claim.